M4A audio file to flashcards for revision in Russian: send the file and get the text with the timecodes. One file may be up to 30 minutes on the free plan, no minute limit on Pro.
What the M4A stores is what the engine needs. The Russian speech becomes the revision deck in the sections Cards, Terms to define, Self-check questions; one file may be up to 30 minutes, and 3 files a day are free.
For a voice message the Telegram Bot API asks for an .OGG file encoded with OPUS, an .MP3 file or an .M4A file
The recording of the M4A audio file is attached to the widget of the page with the language of the speech set to Russian, and the revision deck comes back as a file of text.
The transcript of the M4A audio file goes to the instruction that is written for the revision deck, and the sections of the answer are Cards, Terms to define, Self-check questions.
The recording of the M4A audio file is in Russian, and that is one of the 99+ languages the engine reads; the setting of the widget says Russian and the revision deck follows.
In the FAQ of the FFmpeg library of Audacity the M4A is written next to the codec it carries: M4A (AAC), AC3 and WMA
One segment per line, the way a person wrote it down. It is the format to paste into a ticket, a chat or a document.
The start and the end time of every segment, and the speakers named separately when you ask for it.
SRT and VTT with the time of every line, so the recording can carry its own subtitles.
The transcript is edited through the API and exported as Markdown for a wiki, or as DOCX for a review.
| What | What the platform says |
|---|---|
| Where the file is | Audacity opens an M4A file with the FFmpeg library: it allows the program to import and export a much larger range of audio formats, including M4A (AAC), AC3 and WMA. |
| What the file is | The Telegram Bot API takes an audio file only in the .MP3 or .M4A format, and it sends a voice message in the .OGG file encoded with OPUS, .MP3 or .M4A format. |
| What can go wrong | Google Drive keeps the M4A among the files it stores: any file type can be stored in Drive, and the list of the audio formats it previews names MP3, MPEG, WAV, .ogg and .opus. |
| What the platform says | In the FAQ of the FFmpeg library of Audacity the M4A is written next to the codec it carries: M4A (AAC), AC3 and WMA. |
| What the platform says | A voice message of the Telegram Bot API is an .OGG file encoded with OPUS, an .MP3 file or an .M4A file. |
| Length of one file | up to 30 minutes on the free plan, no minute limit on Pro |
| Free plan | $0: 3 files a day, up to 30 minutes per file, no card |
| Pro plan | $10 a month when you pay yearly ($120 a year), or $20 a month |
Google Drive keeps the M4A among the files it stores: any file type can be stored in Drive, and the list of the audio formats it previews names MP3, MPEG, WAV, .ogg and .opus. The M4A audio file is read by the engine in Russian, and the revision deck is written from the text, not from a guess.
A name that was never said in the M4A audio file stays out of the revision deck.
The engine does not translate the M4A audio file from Russian.
The file of the M4A audio file stays on your own disk.
Bots can currently send audio files of up to 50 MB in size, and the limit may be changed in the future.
Audacity opens an M4A file with the FFmpeg library: it allows the program to import and export a much larger range of audio formats, including M4A (AAC), AC3 and WMA. The file of the M4A audio file is the input of the engine, and the revision deck is written from it.
Bots can currently send audio files of up to 50 MB in size, and the limit may be changed in the future. The engine reads the Russian speech of the M4A audio file and writes the revision deck from that text.
the student who missed the lecture. The transcript of the M4A audio file is read first, and the revision deck comes out of it in the sections Cards, Terms to define, Self-check questions.
One file of the M4A audio file may be up to 30 minutes on the free plan; the free plan gives 3 files a day.
Bring the file of the M4A audio file to your own disk and upload it here; the engine returns the revision deck with the time of every line.
Reading: 4 minutesUpdated 
Transcribsi editorial team
Speakers by name, a time on every line, export to TXT, SRT, VTT, CSV and Markdown.